If you have more life than your starting life total, this spell costs {X} less to cast, where X is equal to the difference.
Trample
When Glacier Guardian enters, you may have it fight target creature you don't control.

Trample
When Hunger's Door enters, you may return target Aura card from your graveyard to the battlefield attached to Hunger's Door.

When Truffletusk enters, create a Food token.
Whenever you sacrifice a Food, you may create a 1/1 white Soldier creature token with vigilance.

Ward {3}
At the beginning of your end step, create a 1/1 green Goat Spirit creature token. For each kind of counter on Warden of Herds, you may put that many counters of that kind on that token.

Whenever Phlage enters or attacks, Phlage deals 2 damage to any target and you draw a card.
{2}{U}{R}: Return Phlage from your graveyard to the battlefield, then put it on the bottom of its owner's library. Activate only as a sorcery.

Whenever Skotha enters or attacks, target player discards a card and you untap all lands you control.
{2}{B}{G}: Return Skotha from your graveyard to the battlefield, then put it on the bottom of its owner's library. Activate only as a sorcery.

Flash
Approval — When Congressional Kraken enters, return each nonland permanent with mana value less than or equal to the number of colors among permanents you control to their owners' hands.

When Penrath Ambassador enters, target creature must be blocked each combat this turn if able and target creature can't block this turn.
Basic landcycling {1}{G}

When Diago Maldovo enters, you may search your library for a card named Marie Laurent or Hans Nehmann and reveal that card. If you do, shuffle, then put the card on top of it.
Legendary Allies you control have trample.

Favored
Legendary creatures you control have trample.

Matter Harvester has protection from mana values less than the number of artifacts you control.
Whenever a nonland permanent you don't control leaves the battlefield, create a 1/1 colorless Cyborg artifact creature token.

Indestructible
Equipped creature has indestructible as long as it's your turn.
Equip {1}
Spellcharge 5

Vigilance
{T}: Scry 1.
Spellcharge 5

Other creatures you control get +1/+1 and have vigilance.
Spellcharge 5

Flying
Discard a card: Put a +1/+1 counter on Jetstream Cruiser. Activate only once each turn.

{C/B}: Integrate target card in a graveyard.
As long as a creature card with flying is integrated onto Corpsepyre Fiend, it has flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, reach, trample, and vigilance.

Menace
Drop — Lurking Glitch enters with two +1/+1 counters on it if you didn't cast any creature spells during your last turn.

{3}: Integrate the top two cards of target player's library.
When Silverbone Chromate dies, you may sacrifice a permanent you control with two or more cards integrated onto it. If you do, return Silverbone Chromate from your graveyard to the battlefield tapped.

Flying
Ward—Discard a card.
You have “Ward—Discard a card.”
At the beginning of your upkeep, your life total becomes equal to your devotion to black.

Menace
When Hazakh Commandos enters, if you control a black permanent, create a 2/2 colorless Minion creature token with decayed.

{1}{R}, {T}, Discard a card: Draw a card. Scalding Crucible deals 1 damage to each opponent.
Spellcharge 5

This spell costs {1} less to cast for each Elemental you control.
Haste

Barreling Bull can't be blocked by creatures with power 2 or less.
When Barreling Bull enters, return a creature you control to its owner's hand.

Reach
Bumbling Bigfoot doesn't untap during your untap step.
Wander {1}{G}{G}

Vigilance
When Hart of Harnelle Wood dies, you may put two +1/+1 counters on target creature you control.